Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!usc!zaphod.mps.ohio-state.edu!sdd.hp.com!spool2.mu.edu!uwm.edu!csd4.csd.uwm.edu!info-high-audio-request From: jhess@orion.oac.uci.edu (James Hess) Newsgroups: rec.audio.high-end Subject: Re: Leaving components turned on. Message-ID: <8689@uwm.edu> Date: 4 Jan 91 15:00:34 GMT Sender: news@uwm.edu Lines: 13 Approved: tjk@csd4.csd.uwm.edu Originator: tjk@csd4.csd.uwm.edu In article <8634@uwm.edu> ph@ama-1.ama.caltech.edu (Paul Hardy) writes: > >With tubes, you can use a Variac to keep them at, say, 25 VAC and turn >this up to 120 VAC for listening. This gets around the power-on spikes, >and keeps the other components (e.g., caps) warmed up to some degree. > >Anyone know of a good commercial source for Variacs? > Any electronics supply house. TV and stereo servicers use them all the time. [Variac is a trademark of GenRad; you'll want to ask for a variable autotransformer. -tjk]